PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/28-04:13:00
G01     229.5          20.2                7.0 +/-    2.01      15.4 +/-    2.01  0.060 / 0.090
G03     299.1          62.6              -22.7 +/-   26.32     -25.2 +/-   26.32  0.050 / 0.120
G14     83.5           25.6                6.5 +/-    1.50      12.6 +/-    1.50  0.180 / 0.170
G16     154.4          38.8                8.2 +/-    1.18      12.1 +/-    1.18  0.140 / 0.350
G22     232.7          74.0                5.1 +/-    0.65       5.3 +/-    0.65  0.030 / 0.020
G23     303.0          32.6                2.6 +/-    1.80       4.4 +/-    1.80  0.030 / 0.030
G26     112.6          53.4                6.4 +/-    0.85       7.8 +/-    0.85  0.060 / 0.070
G31     42.5           39.1                5.0 +/-    1.62       7.3 +/-    1.62  0.050 / 0.060
G32     94.9           11.5                7.5 +/-    2.13      20.3 +/-    2.13  0.070 / 0.090